https://devzone.nordicsemi.com/f/nordic-q-a/61516/nrf52840-and-mpuThis page shows that MPU is not supported on nRF52840: https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/nrfx_drv_supp_matrix.html On the other hand, the following shows MPU as supported on nRF52840: https://infocenter.nordicsemi.com/topic/ps_nrf52840en-USTelligent Community 13Tue, 19 May 2020 07:17:19 GMThttps://devzone.nordicsemi.com/thread/250585?ContentTypeID=1Tue, 19 May 2020 07:17:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4f56dd3f-f5fb-4216-924e-f879c450d4d4Amanda Hsieh<p>Yes,&nbsp;<span>the stack guard library can support it. </span></p> <p><span>Please also let me correct that</span></p> <p><span>The&nbsp;<a title="Driver support matrix" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/nrfx_drv_supp_matrix.html?cp=7_1_2_1">Driver support matrix</a>&nbsp;indicates the&nbsp;<a title="Peripheral drivers" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__drivers.html?cp=7_1_6_9_0">Peripheral drivers</a>/<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__mpu__hal.html">MPU HAL</a>&nbsp;does not support nRF52840, the&nbsp;<a title="SDK common libraries" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__app__common.html?cp=7_1_6_11">SDK common libraries</a>/</span><span>&nbsp;<a title="MPU (Memory Protection Unit) driver" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__mpu__lib.html?cp=7_1_6_11_34">MPU (Memory Protection Unit) driver</a>&nbsp;and&nbsp;<a title="Stack guard" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__stack__guard.html?cp=7_1_6_11_48">Stack guard</a>&nbsp;can be used on nRF52840&nbsp;which is used by the&nbsp;<a href="https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/ble_sdk_app_cli">Experimental: Console over Bluetooth Application</a>&nbsp;example. (I.e. that example uses both stack guard and MPU library.)&nbsp;</span></p> <p>-Amanda H.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/250545?ContentTypeID=1Mon, 18 May 2020 20:58:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fd5cce36-d7dd-4568-9953-2163148af1ffIgor<p>So, can the stack guard library be used on nRF52840 or not?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/250530?ContentTypeID=1Mon, 18 May 2020 17:45:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8b58d424-43c4-4d01-a3ef-eee83f8d3b65Amanda Hsieh<p>(Updated)</p> <p><span>The&nbsp;</span><a title="Driver support matrix" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/nrfx_drv_supp_matrix.html?cp=7_1_2_1">Driver support matrix</a><span>&nbsp;indicates the&nbsp;</span><a title="Peripheral drivers" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__drivers.html?cp=7_1_6_9_0">Peripheral drivers</a><span>/</span><a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__mpu__hal.html">MPU HAL</a><span>&nbsp;does not support nRF52840.&nbsp;</span></p> <p>---</p> <p>Hi,&nbsp;</p> <p>Both documents are correct.&nbsp;</p> <p>Although the ARM<span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/00ae.svg" title="Registered">&#x00ae;</span> Cortex<span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/00ae.svg" title="Registered">&#x00ae;</span> -M4 processor in nRF52840 has MPU, the&nbsp;<span>MPU driver&nbsp;(<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__nrf__mpu__hal.html">MPU HAL</a>) is not supported to nRF52840.&nbsp;</span></p> <p><span>-Amanda H.</span></p><div style="clear:both;"></div>